Elnos Group successfully delivers installation projects for GIS (Gas-Insulated Substations) – modern, space-efficient solutions that enable reliable power transmission in urban, geographically challenging, and industrially demanding environments.
Our engineering teams have extensive experience working on high-voltage GIS facilities under specific operating conditions and within energy-critical infrastructure.
Key reference projects include:
- Krafla 49 Substation, Iceland: Electromechanical works on a 245/132/12 kV GIS substation within Iceland’s largest geothermal power plant (60 MW)
- GIS Belgrade 44 – Surčin, Serbia: Construction of a new 110/35 kV substation — complete turnkey electromechanical works
- Centar Substation, Slovenia: Reconstruction – new 110/10 (20) kV GIS and MV facilities, electromechanical installation works without equipment supply
By combining precise execution, system resilience, and advanced technical solutions, the GIS substations we build contribute to energy efficiency and safety in environments where every metre of space and every moment of operational availability is critical.
Featured Projects
New 400 kV Tuna substation construction – a key energy Link for Sweden Sweden
400 kV Himmeta substation construction a key node of Sweden’s NordSyd project Sweden
110/30/20 kV Güssing substation construction – Elnos Group’s first project in Austria Austria
SS in the Călărași steel plant – reliable power supply for industrial facilities in Romania Romania
Infrastructure Stability for the Future
Elnos Group continually contributes to the development of modern power infrastructure through substation projects up to 400 kV. Our work reflects a commitment to quality, innovation, and the security of the transmission system.
Contact us to build sustainable energy solutions for the future.